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#compdef -P pydoc[0-9.]#

local curcontext=$curcontext state state_descr line ret=1
typeset -A opt_args
local -a args

args=(
  '(- *)-k[search keyword]:keyword'
  '(-k -g -w)-p[start web server on specified port]:port number'
  '(-)-w[write out HTML in current directory]'
  '(-)*: :->lookup'
)

if _pick_variant pydoc3='pydoc3 -b' pydoc2 -h; then
  args+=( '(-k -w)-b[start server and open browser]' )
  args+=( '(-k -w)-n[start web server with the given hostname]:hostname' )
else
  args+=( '(- *)-g[start gui]' )
fi

_arguments -C : $args && return 0

case $state in
(lookup)
  if [[ $words[CURRENT] = */* ]]; then
    _files && ret=0
  else
    _alternative \
      'keywords:keyword:compadd ${=${${(f)"$(_call_program keywords $words[1] keywords)"}[2,-1]}}' \
      'topics:topic:compadd ${=${${(f)"$(_call_program topics $words[1] topics)"}[2,-1]}}' \
      'modules:module:_python_modules' && ret=0
  fi
esac

return ret